Wind farm, wind power plant in a wind farm and operating control for this purpose

Abstract

Wind farm and method of controlling operation of a wind farm. The wind farm including a plurality of wind power plants, each equipped in a same manner with a pivoted rotor structure and a control device for controlling the operation of the individual wind power plants. The control device is structured and arranged to synchronize the rotary motions of the rotor structures of at least some of the plurality of wind power plants.

What is claimed: 
     
       1. A wind farm comprising:
 a plurality of wind power plants, each equipped in a same manner with a pivoted rotor structure; and 
 a control device for controlling the operation of the individual wind power plants, 
 wherein the control device is structured and arranged to synchronize the rotary motions of the rotor structures of at least some of the plurality of wind power plants by one of:
 detecting the rotary motion of the rotor structure of one of the plurality of wind power plants via sensors on the wind power plant and communicating the detected rotary motion to control devices of other rotary structures of the plurality of wind structures to adjust the rotary motions of the other rotary structures with the detected rotary motion; or 
 communicating with local controls of the plurality of wind power plants to receive one of an instantaneous rotary positions of the rotary structures of the plurality of wind power plants or rotary motions of the rotary structures of the plurality of wind power plants detected by sensors on the plurality of wind power plants; continuously forming an arithmetic average of rotation angles of the plurality of wind power plants; and communicating the arithmetic average of rotation angles to the local controls to adjust the respective rotary structures to the arithmetic average of rotation angles. 
 
 
     
     
       2. The wind farm according to  claim 1 , wherein the control device comprises a central control unit associated with the one of the plurality of wind power plants to set a certain desired rotary motion for the other rotary structures of the plurality of wind power plants. 
     
     
       3. The wind farm according to  claim 2 , wherein the desired rotary motion is the detected rotary motion of the rotor structure of the one of the plurality of wind power plants. 
     
     
       4. The wind farm according to  claim 1 , wherein the sensors are arranged on the rotor structure of the one of the plurality of wind power plants and the one of the control device includes a communication device for communicating a desired rotary motion of the rotor structures of the one of the plurality of wind power plants to an external technical device. 
     
     
       5. The wind farm according to  claim 4 , wherein the external technical device is a radar system. 
     
     
       6. A method for controlling the operation of several wind power plants that are respectively equipped in the same manner with a pivoted rotor structure in a wind farm, the method comprising:
 synchronizing rotary motions of the rotor structures of at least some of the wind power plants by one of:
 detecting the rotary motion of the rotor structure of one of the plurality of wind power plants via sensors on the wind power plant and communicating the detected rotary motion to control devices of other rotary structures of the plurality of wind structures to adjust the rotary motions of the other rotary structures with the detected rotary motion; or 
 communicating with local controls of the plurality of wind power plants to receive one of an instantaneous rotary positions of the rotary structures of the plurality of wind power plants or rotary motions of the rotary structures of the plurality of wind power plants detected by sensors on the plurality of wind power plants; continuously forming an arithmetic average of rotation angles of the plurality of wind power plants; and communicating the arithmetic average of rotation angles to the local controls to adjust the respective rotary structures to the arithmetic average of rotation angles. 
 
 
     
     
       7. A wind power plant in a wind farm, comprising:
 a detection device for detecting rotary motion of a pivoted rotor structure of the wind power plant; 
 at least one of a controllable load variation device for varying a load counteracting the rotary motion of the rotor structure and a controllable efficiency adjustment device for varying the wind power conversion efficiency of the rotor structure; and 
 a control device for controlling the at least one of the load variation device or the efficiency adjustment device, 
 wherein the control device is structured and arranged to control the at least one of the load variation device and the efficiency adjustment device for a synchronization of the rotary motion of the rotor structure with an arithmetic average of the rotation angles of a plurality of wind power plants, which is communicated to the control device of the wind power plant by an external device, and wherein the plurality of wind power plants includes the wind power plant. 
 
     
     
       8. A method for controlling the operation of a wind power plant in a wind farm comprising
 detecting a rotary motion of a pivoted rotor structure of the wind power plant; and 
 at least one of varying a load counteracting the rotary motion of the rotor structure and varying the wind power conversion efficiency of the rotor structure, 
 wherein the at least one of the load variation and the efficiency adjustment is carried out for synchronizing of the rotary motion of the rotor structure with an arithmetic average of the rotation angles of a plurality of wind power plants, which is communicated to the control device of the wind power plant by an external device, and wherein the plurality of wind power plants includes the wind power plant. 
 
     
     
       9. The wind farm according to  claim 1 , wherein the control device comprises a central control unit to establish and set a certain desired rotary motion for the rotary structures of the plurality of wind power plants. 
     
     
       10. The wind farm according to  claim 9 , wherein the desired rotary motion is set by the forming of the arithmetic average of rotation angles. 
     
     
       11. The wind farm according to  claim 1 , wherein the sensors are arranged on each rotor structure of the plurality of wind power plants and the control device includes a communication device for communicating the one of an instantaneous rotary positions of the rotary structures of the plurality of wind power plants or rotary motions of the rotary structures of the plurality of wind power plants detected by sensors on the plurality of wind power plants to an external technical device. 
     
     
       12. The wind farm according to  claim 11 , wherein the external technical device is a radar system.